Synchronizing apparatus



Sept. 11, 1934. r H 5 CO EY 1,973,405

SYNCHRONI Z ING APPARATUS Filed Feb. 1, 1933 2 Sheets-Sheet 1 Sept. 11; 1934- H COOLEY 1,973,405

SYNCHRONI Z ING APPARATUS Fi led Feb. 1; 1935 2 She ets-Shee 2 Patented Sept. 11, 1934 UNITED STATES PATENT OFFICE SYNCHRONIZIN G APPARATUS Application February 1, 1933, Serial No. $54,595

it Claims.

My invention relates to mechanism for synchronizing the operations of feeding apparatus more particularly used in machines for forming cups, and an object of my invention, among others, is the production of a synchronizing apparatus that shall be simple in construction and certain and eflicient in its method of operation.

One form of a device embodying my invention and in the construction and use of which the objects herein set out, as well as others, may be attained is illustrated in the accompanying drawings, in which Figure 1 is a top view of a portion of a cup making machine embodying my invention.

Figure 2 is a view in .elevation of the same, partially in section.

Figure 3 is a detail view illustrating the mechanism for feeding a strip from which cup bottom blanks are formed.

Figure a is a side view of the same showing the parts in non-feeding positions.

My invention, while not limited in its use to any specific type of machine, is particularly applicable to machines for forming cups common ly made from thin material as papenor the like, and for this reason I have shownfand described herein my invention as applied to such a machine in the accompanying drawings in which the numeral 10 denotes side parts of the frame of the body blank feeding apparatus of a cup making machine, 11 legs or standards supporting a table 12 on which a turret 13 is rotatably mounted, said turret having mandrels 141 projecting radially therefrom upon which cup bodies are formed. The side parts 10 rotatably support a set of gumming rolls 15 and sets of feed rolls 16, all of which may be of ordinary and well known construction, and a further and detailed description therefore is omitted herein. This body blank feeding mechanism is located on one side of the turret and amp bottom forming mechanism is located on another side of the turret at an angle of about ninety degrees from the body feeding mechanism, this bottom forming mechanism comprising feed rolls 17 for a strip 18 of material from which the bottoms are to be cut and formed, said strip passing through a box 19 containing the cutting dies and forming mechanism and by means of which the cup bottoms are placed within recesses in the bottoms of the mandrels 14: in a manner common to structures of this class, all of the mechanism thus far described being of old and well known construction and for which reason a further and-de- (lDll. 93-39) tailed description is omitted herein, as it will be readily understood by those skilled in the art.

The strip 18 is fed by a step-by-step movement of the rolls 17, the shafts of which are connected by a pinion 20 and a gear 21, step-by-step movement being imparted to the shaft containing the larger roll and the gear 21 by a pawl 22 operating in connection with a ratchet 23, said pawl being pivotally attached to one arm of a rocking plate 2% freely mounted for rocking movement on the shaft of said roll, another arm of which plate has anactuating rod 25 pivotally attached thereto, said rod projecting downwardly through a hole in the table 12, and as shown in Fig. 1 of the drawings. Said rod is actuated as by means of a cam 26 on a cam shaft 27 rotatably mounted in the frame of the machine and'operated in a manner common to machines of this class. The cup body feeding mechanism and the gumming rolls are operated as by means of gears 28 and 29 all of which, together with the turret rotating mechanism and the cam shaft 27, are connected. for operation from the same source of power, all of the parts being timed in their operation to provide a synchronous feeding of cup body blanks 30 and cup bottom blanks produced from the strip 18, a body blank being supplied to a mandrel and a bottom blank being placed in the recess in a turret at each cycle of operation of the machine. The connecting means are not shown herein it being briefly stated that at the time a cup bottom is being cut and formed a blank for the formation of a body to receive said bottom is passing through the gumming rolls to be wrapped around a mandrel 14 within which said cup bottom has been placed, a one-step rotation of the turret carrying said bottom taking place during movement of the blank 30 from about the position'shown in Fig. 1 to mechanism, not shown, for wrapping said blank about the mandrel containing said cup bottom.

The actuating rod 25 has a stop collar 31 secured thereto in proximity to the table 12 and a stop latch 32 is pivotally mounted on said table in position for its end to pass under and in the path of movement of said collar. Said latch has a reciprocating movement imparted thereto by means of a latch actuating link 33 pivotally attached at one end to said latch and at its opposite end to a latch actuating arm 34 loosely pivotally mounted on an actuating shaft 35 mounted for rocking movement in the side parts 10 of the frame. The arm 34 is resiliently actuated as by means of actuator springs 36 and 37, as shown in Figure 1, the spring 36 being attached at one end to a gumming shaft 42 upon which the lower' gumming roll of the set 15 is mounted. A retainer 43 is secured to an end of a retaining shaft 44 projecting beyond the side part of the frame, said shaft also having a controlling finger 45 secured thereto intermediate its ends and in the path of movement of the body blanks 30 as they pass into the throat between the gumming rolls. In the arrangement herein shown said finger rests in a slot 46 formed in the guide 47 for the blanks, said finger being lifted each time that a blank passes underneath it and thereby removing the retainer 43 from the path of movement of the arm 39.

In the operation of the machine the latch 32 is swung backwardly, and forwardly into the path of movement of the stop collar 31, at each cycle of operation of the bottom forming dies to produce a cup bottom, said collar having a vertical reciprocating movement effected by the cam 26, the movements of the latch 32 and stop collar 31 being synchronized and the latch passing from beneath the collar at each downward movement of the rod 25. synchronously with the operation of the latch 32 the stop finger operating arm 39 is swung to and fro underneath the hooked end of the retainer 43. Should a blank fail to pass between the gumming rolls the controlling finger 45 will not be lifted and the'hooked end of the swinging movement of the latter and operation of the link 33 with the latch 32 in the path of move-.

ment of the stop collar 31. Downward movement of the actuating rod 25 is thus dogged at a time when the pawl 22 is in the position shown in Fig. 4, thereby preventing engagement of said pawl with the next tooth on the ratchet to effect a one-step feeding movement of the rolls 17. As

a result the dies in the box 19 do not eifect the formation of a cup bottom, the movable die simply passing through the opening previously formed in the tape 18. This non-feeding operation of the rolls 17 and 18 will continue until another blank is passed to the gumming rolls whereupon the finger '45 will be raised, the retainer 43 will be located in disengaging position and the formation of cup bottoms to be supplied to cup bodies formed by said blank will take place and continue until a blank again fails to pass between the gumming rolls.

In accordance with the provisions of the patent statutes I have described the principles of operation of my invention, together with the device which I now consider to represent the best embodiment thereof; but I desire to have it understood that my device shown is only illustrative and that the invention may be carried out by other means and applied to uses other than those above set out.

I claim:

1. A synchronizing apparatus including two feed mechanisms, a reciprocating member appurtenant to each of said feed mechanisms, a stop for one of said reciprocating members, means for operating the other of said reciprocating members, and an operative connection between said stop and the other of said reciprocating members whereby operation of one effects operation of the other.

2. A synchronizing apparatus including two feed mechanisms, a reciprocating member appurtenant to each of said feed mechanisms, a stop for each of said reciprocating members, a link operatively connecting one of said reciprocating members with one of said stops, and means governed by the feed of one of said mechanisms for operating the other of said stops to prevent movement of one of said reciprocating members and thereby efiect operation of the other of said stops to obztruct movement of the other reciprocating mem- 3. A synchronizing apparatus including two feed mechanisms, a reciprocating member appurtenant to each of said feed mechanisms, a stop for each of said reciprocating members, a link constituting a member of a connection between a reciprocating member and a stop, means operatively connected with one of said feed mechanism and with said link for actuating said link to operate one of said stops, and means governed by the feed of one of said mechanisms for operation of the other of said stops and hence the operation of both stops.

4. A synchronizing apparatus including two feed mechanisms, a reciprocating member appurtenant to each of said feed'mechanisms, a link constituting a member of a connection between said reciprocating members, a single member to operate one of said reciprocating members and through said link the other of said reciprocating members, a stop appurtenant to one of said feed mechanisms and operating through one of said reciprocating members and through said link to stop operation of one of said stops, and means governed by the feed of one of said mechanisms for operating the other of said stops.

5. A synchronizing apparatus including two feed mechanisms, a reciprocating member appurtenant to each of said feed mechanisms, a link constituting a member of a connection between said reciprocating members, a single member to operate one of said reciprocating members and through said link the othe; of said reciprocating members, a stop for each or saidreciprocating members, means operatively connected with one of said feed mechanisms and with said link for actuation of said link to operate one of said stops,

-mechanisms, a reciprocating member operatively connected with the other feed mechanism, a single member for operating both of said reciprocating members, a stop for one of said feed mechanisms, a link connecting said stop and the reciprocating member of the other feed mechanism, and a stop governed by feed of articles by said one feed mechanism to stop operations of the reciprocating member of said one feed mechanism.

7. A synchronizing apparatus including two feed mechanisms, a reciprocating member for operating one of said feed mechanisms, a stop for said reciprocating member to limit the extent of movement thereof and thereby prevent feeding operation without stopping its reciprocating movement, a reciprocating member appurtenant to the other feed mechanism, a single member for operating both of said reciprocating members a stop for said other reciprocating member, means for actuating said other reciprocating member, and. an operative connection between said other reciprocating member and the stop for the first mentioned reciprocating member for actuation of said stop.

8. A synchronizing apparatus including two feed mechanisms, a reciprocating member for operating one of said feed mechanisms, a ratchet and pawl mechanism included in said feed mechanisms for imparting step-by-step movement.

thereto, a stop for said reciprocating member to limit the extent of movement thereof and there-= by prevent engagement of the pawl with its ratchet without stopping reciprocating movement thereof, a reciprocating member appurtenant to the other feed mechanism, a single member for operating both of said reciprocating members a stop for said other reciprocating member, means for actuating said other reciprocating member, and an operative connection between said other reciprocating member and the stop for the first mentioned reciprocating member for actuation of its stop.

9. A synchronizing apparatus including a roller feed mechanism, a reciprocating member, an operative connection between said reciprocating member and said roller feed mechanism for imparting step-by-step movement to the rolls of said feed mechanism, a stop for said reciprocating member, a second roller feed mechanism, means for continuously operating the rolls of said second feed mechanism, a reciprocating member operated by the rolls of said second feed mechanism, a stop ior said last mentioned reciprocating member, and an operative connection between the reciprocating member of one of said feed mechanisms and the stop appurtenant to the other of said feed mechanisms to simultaneously stop movement of both of said feed mechanisms.

10. A synchronizing apparatus for a cup making machine, said machine including rolls for feeding a strip for the production of cup bottoms and rolls for feeding blanks for the production of cup bodies, means for imparting a step-by-step movement to the rolls for said strip, said means including a reciprocating member, means for im parting rotation to the rolls for said blanks, a reciprocating member appurtenant to said bla feed rolls and operated thereby, a stop for each of said reciprocating members, means governed by the feed of one of said mechanisms for operating one of said stops, and an operative connection be'- tween the stop of one of said roll feeding mechanisms and the reciprocating member of the other of said roll feeding mechanisms to stop feeding movement of one feeding mechanisms when feed movement of the other feed mechanism ceases.

ill. A synchronizing apparatus for a cup making machine, said machine including rolls for feeding a, strip for the production of cup bottoms, means including a reciprocating member for imparting a step-by-step movement to said rolls, a stop for said reciprocating member, a pair of rolls for feeding cup blanks, a blank feeding reciprocating member operatively connected with said blank feed, a stop governed by the feed of said blanks for stopping movement of said blank feeding reciprocating member, and an operative connection between said last mentioned reciprocating member and the stop of the bottom feeding mechanism for simultaneously operating said stop.

with said finger in position to engage said last mentioned reciprocating member to stop movement of the latter upon the failure of the blanks to pass said finger.

13. A synchronizing apparatus for a cup making machine, said machine including meansfor feeding a'strip for the production of cup bottoms,

said means including a reciprocating member, a stop for said reciprocating member, feed rolls for feeding cup blanks, a reciprocating member connected with said feed rolls, an operative connection between the last mentioned reciprocating member and said stop for'operation of the latter,

a stop for said last mentioned reciprocating member, and means engaged with said stop and located in the path of movement of the blanks to raise said stop into disengaging position at each pas-' sage of a blank underneath said stop.

14. A synchronizing apparatus for a cup making machine, said machine including rolls for feeding cup blanks, a reciprocating member operatively connected with said rolls, a stop arranged for engagement of said reciprocating member to stop its movement, means connected with said stop and governed by the passage of blanks to operate said stop, a cup bottom feeding mechanismincluding a reciprocating member, a stop for said reciprocating member, and a connection between the reciprocating member of the blank feeding mechanism and said last mentioned stop to move the latter into disengaging position at each movement of said last mentioned reciprocating member into disengaging position.

HENRY B. COOLEY. 

